CN217636938U

CN217636938U - Flue gas waste heat recovery system

Info

Publication number: CN217636938U
Application number: CN202221448479.1U
Authority: CN
Inventors: 黄杰; 黄河; 梁芳
Original assignee: HUBEI WANERSI ENVIRONMENTAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: HUBEI WANERSI ENVIRONMENTAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-21
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a flue gas waste heat recovery system, including bottom plate, a main section of thick bamboo, water tank and cooling tube, main section of thick bamboo fixed connection is in the top outer wall of bottom plate, and the top both ends outer wall of a main section of thick bamboo respectively fixedly connected with advance the chimney and violently manage, advance the chimney and the equal fixedly connected with connecting cylinder of the one end outer wall of violently managing, and cooling tube fixed connection is between the relative one end inner wall of two connecting cylinders, water tank fixed connection is in the bottom inner wall of a main section of thick bamboo, and the circumference outer wall fixedly connected with commuting case of cooling tube, between the bottom both ends outer wall of the top both ends outer wall of water tank and commuting case respectively first connecting pipe of fixedly connected with and second connecting pipe, and the top inner wall fixedly connected with water pump of water tank. The utility model discloses a to the thermal recovery effect in the flue gas, the water pump can carry the water in the water tank into the commuting case through the second connecting tube and contact with the heat dissipation pipe to make the temperature in the flue gas and the temperature of water carry out the heat exchange.

Description

Flue gas waste heat recovery system

Technical Field

The utility model relates to a boiler technical field especially relates to a flue gas waste heat recovery system.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, the origin of the boiler refers to a water container heated on fire, the boiler refers to a place where the fuel is combusted, the boiler comprises a boiler and a furnace, the hot water or the steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device.

The exhaust flue gas all has the uniform temperature mostly after the boiler combustion is accomplished, if the direct discharge is outdoor, not only can cause the waste of the energy, still can the polluted environment, and current heat recovery equipment to the boiler flue gas is at the in-process that uses, can't retrieve the heat in the flue gas as far as most all, still possesses certain limitation, consequently, need design a flue gas waste heat recovery system to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flue gas waste heat recovery system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a flue gas waste heat recovery system, includes bottom plate, main section of thick bamboo, water tank and cooling tube, main section of thick bamboo fixed connection is in the top outer wall of bottom plate, and the top both ends outer wall of main section of thick bamboo respectively fixedly connected with advance the chimney and violently manage, advance the chimney and violently manage the equal fixedly connected with connecting cylinder of one end outer wall, and cooling tube fixed connection is between the relative one end inner wall of two connecting cylinders, water tank fixed connection is in the bottom inner wall of main section of thick bamboo, and the circumference outer wall fixedly connected with exchange box of cooling tube, and between the top both ends outer wall of water tank and the bottom both ends outer wall of exchange box respectively fixedly connected with first connecting pipe and second connecting pipe, and the top inner wall fixedly connected with water pump of water tank, the water pump communicates with each other with the bottom outer wall of second connecting pipe, and the outer wall of first connecting pipe and second connecting pipe is provided with insulation construction, the bottom both ends outer wall of main section of thick bamboo respectively fixedly connected with inlet tube and outlet pipe respectively in the both ends of water tank.

Preferably, the circumference outer wall fixedly connected with of violently managing encircles, and the one end outer wall fixedly connected with collar of collar, the circumference inner wall fixedly connected with of collar goes out the chimney, and the circumference inner wall fixedly connected with of going out the chimney goes out the cigarette and keeps off the net.

Preferably, equal fixedly connected with connecting rod between the four corners inner wall of bottom plate, and the top one end outer wall fixedly connected with backup pad of bottom plate, the top outer wall fixedly connected with bracing piece of backup pad, the top outer wall of bracing piece cup joints in the circumference outer wall of violently managing.

Preferably, the heat insulation structure comprises two heat insulation sleeves, and the heat insulation sleeves are respectively sleeved on the circumferential outer walls of the first connecting pipe and the second connecting pipe.

Preferably, the circumference outer wall of outlet pipe fixedly connected with control valve, and the top outer wall fixedly connected with top cap of main section of thick bamboo.

Preferably, the inner wall of the circumference of the radiating pipe is fixedly connected with a plurality of heat absorbing plates which are distributed equidistantly, a through groove is formed between the outer walls of the two ends of each heat absorbing plate, the outer walls of the top and the bottom of each heat absorbing plate are fixedly connected with a radiating plate, and the radiating plates and the heat absorbing plates are made of copper materials.

Preferably, the circumferential inner wall of the through groove is fixedly connected with a slow flow cylinder, and the circumferential inner wall of the slow flow cylinder is of a circular truncated cone structure.

The utility model has the advantages that:

1. through the main section of thick bamboo that sets up, when needs carry out heat recovery to the flue gas, carry hot cigarette to the radiator pipe through advancing the chimney, the water pump that is located the water tank this moment can pass through the second connecting pipe transport with the water in the water tank and contact in the exchange box and with the radiator pipe, thereby make the temperature in the flue gas carry out the heat exchange with the temperature of water, thereby realized the thermal recovery effect to the flue gas, moreover, the steam generator is simple in structure, high durability and convenient operation, and the water that flows in the exchange box can get back to the water tank through first connecting pipe, and get into the exchange box through the second connecting pipe once more, the manifold cycle has improved the absorption effect to the heat in the flue gas, and finally the water that has the temperature can flow back to the boiler through the outlet pipe again, high practicability, can make the outlet chimney fix at violently manage the outer wall through collar and butt joint ring, thereby realized the removable effect to the device.

2. Through the absorber plate that sets up with send the board that looses, be provided with a plurality of copper product's absorber plate in the cooling tube and when dispersing the board, with the heat exchange efficiency that the board can further improve flue gas and water of loosing of water direct contact to the thermal recovery effect to the flue gas has been strengthened.

3. Through the slow flow cylinder, when the slow flow cylinder is arranged in the heat absorbing plate, smoke entering the heat radiating pipe from the smoke inlet cylinder can be limited by the slow flow cylinder, so that the retention time of the smoke in the heat radiating pipe is prolonged, and the heat exchange efficiency of the smoke is improved again.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a flue gas waste heat recovery system according to embodiment 1;

fig. 2 is a schematic sectional front view of a flue gas waste heat recovery system according to embodiment 1;

fig. 3 is a schematic diagram of a divergent plate structure of a flue gas waste heat recovery system according to embodiment 2;

fig. 4 is a schematic structural view of a flow slowing tube of the flue gas waste heat recovery system provided in embodiment 3.

In the figure: the device comprises a base plate 1, a support plate 2, a connecting rod 3, a support rod 4, a chimney 5, a transverse pipe 6, a mounting ring 7, a butt joint ring 8, a main barrel 9, a water inlet pipe 10, a smoke blocking net 11, a connecting barrel 12, a water tank 13, a first connecting pipe 14, a heat preservation sleeve 15, a heat exchange box 16, a water pump 17, a second connecting pipe 18, a water outlet pipe 19, a control valve 20, a radiating pipe 21, a smoke inlet barrel 22, a heat absorbing plate 23, a through groove 24, a heat radiating plate 25 and a slow flow barrel 26.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

Example 1

Referring to fig. 1-2, a flue gas waste heat recovery system, including a bottom plate 1, a main cylinder 9, a water tank 13 and a heat dissipation pipe 21, the main cylinder 9 is connected to the top outer wall of the bottom plate 1 through bolts, and the outer walls of the two ends of the top of the main cylinder 9 are welded with a flue gas inlet cylinder 22 and a horizontal pipe 6 respectively, a connection cylinder 12 is welded to the outer wall of one end of the flue gas inlet cylinder 22 and the outer wall of one end of the horizontal pipe 6, and the heat dissipation pipe 21 is welded between the inner walls of the two opposite ends of the connection cylinders 12, the water tank 13 is connected to the inner wall of the bottom of the main cylinder 9 through bolts, and a switching box 16 is welded to the outer wall of the circumference of the heat dissipation pipe 21, a first connection pipe 14 and a second connection pipe 18 are welded between the outer walls of the two ends of the top of the water tank 13 and the outer walls of the two ends of the bottom of the switching box 16 respectively, and the inner wall of the top of the water tank 13 is connected with a water pump 17 through bolts, the water pump 17 is communicated with the outer wall of the bottom of the second connection pipe 18, the outer walls of the first connection pipe 14 and the outer walls of the second connection pipe 18 are provided with a heat insulation structure, the outer walls of the two ends of the bottom of the main cylinder 9, a water inlet pipe 10 and a water outlet pipe 19 are welded respectively, and a water inlet pipe 19 are welded to the outer walls of the two ends of the bottom of the main cylinder 9, and a water inlet pipe 19, and a water inlet pipe 10 are welded respectively, and a water outlet pipe 19 are welded to the water inlet pipe 13.

Wherein, the circumference outer wall of violently managing 6 has butt joint ring 8 through bolted connection, and has collar 7 through bolted connection to the one end outer wall of collar 8, and the welding of the circumference inner wall of collar 7 has a chimney 5, and the welding of the circumference inner wall of chimney 5 has a cigarette to keep off net 11.

Wherein, all weld between the four corners inner wall of bottom plate 1 has connecting rod 3, and the welding of the top one end outer wall of bottom plate 1 has backup pad 2, and there is bracing piece 4 the top outer wall of backup pad 2 through bolted connection, and the top outer wall of bracing piece 4 cup joints in the circumference outer wall of violently managing 6.

Wherein, insulation construction includes two insulation cover 15, and insulation cover 15 cup joints respectively in the circumference outer wall of first connecting pipe 14 and second connecting pipe 18.

Wherein, the circumference outer wall welding of outlet pipe 19 has control valve 20, and the top outer wall of main section of thick bamboo 9 has the top cap through bolted connection.

The working principle is as follows: during the use, when needing to carry out heat recovery to the flue gas, carry the hot cigarette to the cooling tube 21 in through advancing chimney 22, the water pump 17 that is located in water tank 13 this moment can carry the water in the water tank 13 into exchange box 16 through second connecting pipe 18 and contact with cooling tube 21, thereby make the temperature in the flue gas carry out the heat exchange with the temperature of water, thereby realized the recovery effect to the heat in the flue gas, moreover, the steam generator is simple in structure, high durability and convenient operation, and the water that flows in exchange box 16 can return to water tank 13 through first connecting pipe 14, and enter into exchange box 16 through second connecting pipe 18 once more, multiple cycle has improved the absorption effect to the heat in the flue gas, and the water that finally has the temperature can flow back to the boiler through 19 again, can make a chimney 5 fix at violently pipe 6 outer wall through collar 7 and butt joint ring 8, thereby realized the detachable effect to the device.

Example 2

Referring to fig. 3, in the flue gas waste heat recovery system, compared with embodiment 1, in this embodiment, a plurality of heat absorbing plates 23 are welded on the circumferential inner wall of the heat dissipation pipe 21 and are distributed equidistantly, a through groove 24 is formed between the outer walls of two ends of each heat absorbing plate 23, the top and bottom outer walls of each heat absorbing plate 23 are welded with a divergence plate 25, and the divergence plate 25 and the heat absorbing plates 23 are made of copper materials.

The working principle is as follows: when in use, when the heat absorbing plate 23 and the radiating plate 25 made of a plurality of copper materials are arranged in the radiating pipe 21, the radiating plate 25 in direct contact with water can further improve the heat exchange efficiency of the flue gas and the water, thereby enhancing the heat recovery effect of the flue gas.

Example 3

Referring to fig. 4, in the flue gas waste heat recovery system, compared with embodiment 2, in this embodiment, a circumferential inner wall of the through groove 24 is connected with a slow flow cylinder 26 through a bolt, and a circumferential inner wall of the slow flow cylinder 26 is in a circular truncated cone structure.

The working principle is as follows: when in use, when the slow flow cylinder 26 is arranged in the heat absorbing plate 23, the smoke entering the radiating pipe 21 from the smoke inlet cylinder 22 can be limited by the slow flow cylinder 26, so that the retention time of the smoke in the radiating pipe 21 is increased, and the heat exchange efficiency of the smoke is improved again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A flue gas waste heat recovery system, which comprises a bottom plate (1), a main cylinder (9), a water tank (13) and a radiating pipe (21), it is characterized in that the main cylinder (9) is fixedly connected with the outer wall of the top of the bottom plate (1), the outer walls of two ends of the top of the main cylinder (9) are respectively and fixedly connected with a smoke inlet cylinder (22) and a transverse pipe (6), the outer walls of one ends of the smoke inlet cylinder (22) and the transverse pipe (6) are respectively and fixedly connected with a connecting cylinder (12), and the radiating pipe (21) is fixedly connected between the inner walls of the opposite ends of the two connecting cylinders (12), the water tank (13) is fixedly connected with the inner wall of the bottom of the main cylinder (9), and the circumferential outer wall of the radiating pipe (21) is fixedly connected with an exchange box (16), a first connecting pipe (14) and a second connecting pipe (18) are respectively and fixedly connected between the outer walls of the two ends of the top of the water tank (13) and the outer walls of the two ends of the bottom of the exchange box (16), a water pump (17) is fixedly connected with the inner wall of the top of the water tank (13), the water pump (17) is communicated with the outer wall of the bottom of the second connecting pipe (18), the outer walls of the first connecting pipe (14) and the second connecting pipe (18) are provided with heat insulation structures, the outer walls of two ends of the bottom of the main cylinder (9) are respectively fixedly connected with a water inlet pipe (10) and a water outlet pipe (19), and the water inlet pipe (10) and the water outlet pipe (19) are respectively and fixedly connected with the outer walls of the two ends of the water tank (13).

2. The flue gas waste heat recovery system according to claim 1, wherein a docking ring (8) is fixedly connected to the outer circumferential wall of the transverse pipe (6), a mounting ring (7) is fixedly connected to the outer circumferential wall of one end of the docking ring (8), a smoke outlet pipe (5) is fixedly connected to the inner circumferential wall of the mounting ring (7), and a smoke outlet baffle net (11) is fixedly connected to the inner circumferential wall of the smoke outlet pipe (5).

3. The flue gas waste heat recovery system according to claim 2, characterized in that connecting rods (3) are fixedly connected between the inner walls of the four corners of the bottom plate (1), the outer wall of one end of the top of the bottom plate (1) is fixedly connected with a supporting plate (2), the outer wall of the top of the supporting plate (2) is fixedly connected with supporting rods (4), and the outer wall of the top of each supporting rod (4) is sleeved on the outer wall of the circumference of the transverse pipe (6).

4. The flue gas waste heat recovery system according to claim 3, wherein the heat insulation structure comprises two heat insulation sleeves (15), and the heat insulation sleeves (15) are respectively sleeved on the circumferential outer walls of the first connecting pipe (14) and the second connecting pipe (18).

5. The flue gas waste heat recovery system according to any one of claims 1 to 4, wherein the circumferential outer wall of the water outlet pipe (19) is fixedly connected with a control valve (20), and the top outer wall of the main cylinder (9) is fixedly connected with a top cover.

6. The flue gas waste heat recovery system according to claim 1, wherein a plurality of heat absorbing plates (23) are fixedly connected to the inner circumferential wall of the heat dissipation pipe (21) and are distributed equidistantly, a through groove (24) is formed between the outer walls at two ends of each heat absorbing plate (23), the outer walls at the top and the bottom of each heat absorbing plate (23) are fixedly connected with a diffusion plate (25), and the diffusion plate (25) and the heat absorbing plates (23) are made of copper materials.

7. The flue gas waste heat recovery system according to claim 6, wherein a slow flow cylinder (26) is fixedly connected to the circumferential inner wall of the through groove (24), and the circumferential inner wall of the slow flow cylinder (26) is of a circular truncated cone structure.